2102503401 has 6 divisors (see below), whose sum is σ = 3036949370. Its totient is φ = 1401668928.

The previous prime is 2102503399. The next prime is 2102503423. The reversal of 2102503401 is 1043052012.

2102503401 is a `hidden beast` number, since 2 + 10 + 250 + 3 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2073891600 + 28611801 = 45540^2 + 5349^2 .

It is not a de Polignac number, because 2102503401 - 2¹ = 2102503399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102503471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116805736 + ... + 116805753.

Almost surely, 2^2102503401 is an apocalyptic number.

It is an amenable number.

2102503401 is a deficient number, since it is larger than the sum of its proper divisors (934445969).

2102503401 is a wasteful number, since it uses less digits than its factorization.

2102503401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233611495 (or 233611492 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2102503401 is about 45853.0631583104. The cubic root of 2102503401 is about 1281.0878205638.

Adding to 2102503401 its reverse (1043052012), we get a palindrome (3145555413).

The spelling of 2102503401 in words is "two billion, one hundred two million, five hundred three thousand, four hundred one".